Missing pregnant teen Morgan Martin

ST. PETERSBURG, Florida (WTSP) -- A St. Petersburg mother is very worried; it's been a week since her pregnant teen daughter disappeared.

Leah Martin said her daughter, Morgan, walked out her home along the 2800 block of 17th Avenue South wearing pajamas to talk to the father of her unborn child.

"She was excited about it being a girl. She wrote her name in the sidewalk. And she was excited and I just think he wasn't," said Martin.

Morgan, who is four months pregnant, has not been seen or heard from since. She left behind her purse and other belongings. Her mother fears the worst.

"She's a good kid. She doesn't deserve whatever is happening," said Martin.

Her sister said it's not like the teen at all to just disappear for days. "I'm just hoping that she's doing something stupid and just ran away. But I'm telling you, it's not like her not to answer her phone or call somebody," said Sierra Cahill.

Since Thursday, the family and police detectives have posted hundreds of fliers around the area. They're hoping someone knows something.

According to police, the teen may have left the area in a white vehicle. If anyone has any information on Morgan, call St. Petersburg police at 727-893-7780.